using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Windows.Forms;
namespace GitForce
{
public partial class FormHttps : Form
{
private readonly ContextMenuStrip _menuHosts = new ContextMenuStrip();
private readonly string netrcfilename;
private Dictionary<string, Tuple<string, string>> netrc = new Dictionary<string, Tuple<string, string>>();
private bool netrcDirty;
/// <summary>
/// Form constructor
/// </summary>
public FormHttps()
{
InitializeComponent();
ClassWinGeometry.Restore(this);
// Add button click handlers that will expand the list of existing fetch and push URLs
_menuHosts.ItemClicked += MenuHostsItemClicked;
string user = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
netrcfilename = Path.Combine(user, ClassUtils.IsMono() ? ".netrc" : "_netrc");
App.PrintStatusMessage("Using file " + netrcfilename, MessageType.Debug);
// Load the .netrc file if it exists, ignore if it does not (we will create it on save)
if (File.Exists(netrcfilename))
{
LoadNetrc(netrcfilename);
PopulateNetrcView();
}
}
/// <summary>
/// Form is closing.
/// </summary>
private void FormHttpsFormClosing(object sender, FormClosingEventArgs e)
{
ClassWinGeometry.Save(this);
// Write back the modified content of the .netrc file
if (netrcDirty)
SaveNetrc(netrcfilename);
}
/// <summary>
/// Load .netrc file into internal data structure
/// </summary>
private void LoadNetrc(string filename)
{
try
{
using (StreamReader file = new StreamReader(filename))
{
do
{
string line = file.ReadLine();
if (line == null)
break;
if (line == string.Empty)
continue;
List<string> keys = line.Split((" ").ToCharArray(), StringSplitOptions.RemoveEmptyEntries).ToList();
if ((keys.Count() != 6) || (keys[0] != "machine") || (keys[2] != "login") || (keys[4] != "password"))
throw new Exception("Bad entry: " + line);
netrc[keys[1]] = new Tuple<string, string>(keys[3], keys[5]); // [machine] = (login, password)
} while (true);
}
}
catch (Exception ex)
{
App.PrintStatusMessage(ex.Message, MessageType.Error);
MessageBox.Show(ex.Message, "Error reading .netrc file", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
/// <summary>
/// Write back internal data into .netrc file
/// </summary>
private void SaveNetrc(string filename)
{
try
{
using (StreamWriter file = new StreamWriter(filename))
{
foreach (var machine in netrc)
file.WriteLine(string.Format("machine {0} login {1} password {2}", machine.Key, machine.Value.Item1, machine.Value.Item2));
}
}
catch (Exception ex)
{
App.PrintStatusMessage(ex.Message, MessageType.Error);
MessageBox.Show(ex.Message, "Error writing .netrc file", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
/// <summary>
/// Rebuilds the listview from the data stored in the internal machine dictionary
/// </summary>
private void PopulateNetrcView()
{
listHosts.BeginUpdate();
listHosts.Items.Clear();
foreach (var machine in netrc)
{
ListViewItem item = new ListViewItem(machine.Key);
item.SubItems.Add(new ListViewItem.ListViewSubItem(item, machine.Value.Item1));
item.SubItems.Add(new ListViewItem.ListViewSubItem(item, "*****"));
listHosts.Items.Add(item);
}
listHosts.EndUpdate();
ListHostsItemSelectionChanged(null, null);
}
private void BtListHostsClick(object sender, EventArgs e)
{
_menuHosts.Items.Clear();
// Pick up a list of existing remote URLs and show them in the pull-down list
List<string> hintUrls = App.Repos.GetRemoteUrls();
foreach (var hintUrl in hintUrls)
_menuHosts.Items.Add(hintUrl);
_menuHosts.Show(btListHosts, new Point(0, btListHosts.Height));
}
/// <summary>
/// User clicked on one of the hosts we listed in the pull down popup menu
/// </summary>
private void MenuHostsItemClicked(object sender, ToolStripItemClickedEventArgs e)
{
textBoxHost.Text = e.ClickedItem.Text;
}
/// <summary>
/// Text in the input box has changed. Validate it and if it's a valid HTTPS URL, enable the "Add" button
/// </summary>
private void TextBoxHostTextChanged(object sender, EventArgs e)
{
// First, a simple test that allows users to paste a clone command
textBoxHost.Text = textBoxHost.Text.Replace("git clone ", "");
ClassUrl.Url host = ClassUrl.Parse(textBoxHost.Text);
btAddHost.Enabled = host.Type == ClassUrl.UrlType.Https;
}
/// <summary>
/// User clicked on the Add host button, prompt for user name and password and then add it
/// </summary>
private void BtAddHostClick(object sender, EventArgs e)
{
// We assume the URL in the text box is a well formatted HTTPS string since Add button would not be enabled otherwise
ClassUrl.Url host = ClassUrl.Parse(textBoxHost.Text.Trim());
AddEdit(host.Host); // Use only the host part of the address
}
/// <summary>
/// User clicked on the Edit button after selecting a single item, open the dialog to edit user name and password
/// </summary>
private void BtEditClick(object sender, EventArgs e)
{
// We assume a single item is selected since Edit button would not be enabled otherwise
AddEdit(listHosts.SelectedItems[0].Text);
}
/// <summary>
/// Given a machine URL, let the user edit its user name and password, update internal data store and the view
/// </summary>
private void AddEdit(string machine)
{
FormHttpsAuth formHttpsAuth = new FormHttpsAuth(true);
if (netrc.ContainsKey(machine))
{
formHttpsAuth.Username = netrc[machine].Item1;
formHttpsAuth.Password = netrc[machine].Item2;
}
if (formHttpsAuth.ShowDialog() == DialogResult.OK)
{
//if (netrc.ContainsKey(machine))
// netrc.Remove("machine");
netrc[machine] = new Tuple<string, string>(formHttpsAuth.Username, formHttpsAuth.Password);
netrcDirty = true;
PopulateNetrcView();
textBoxHost.Text = "";
}
}
/// <summary>
/// User selected (or deselected) one or more items in the view, enable or disable Remove and Edit buttons
/// </summary>
private void ListHostsItemSelectionChanged(object sender, ListViewItemSelectionChangedEventArgs e)
{
btRemoveHost.Enabled = listHosts.SelectedIndices.Count > 0; // Remove is enabled when a nonzero items are selected
btEdit.Enabled = listHosts.SelectedIndices.Count == 1; // Edit is enabled when only one item is selected
}
/// <summary>
/// User clicked on the Remove button, delete selected items
/// </summary>
private void BtRemoveHostClick(object sender, EventArgs e)
{
foreach (ListViewItem item in listHosts.SelectedItems)
netrc.Remove(item.Text);
netrcDirty = true;
PopulateNetrcView();
}
/// <summary>
/// Open the context help
/// </summary>
private void BtHelpClick(object sender, EventArgs e)
{
ClassHelp.Handler("HTTPS Authentication");
}
}
}
